AFOS product CLIIAD
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CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1225 AM EST WED DEC 28 2022

...................................

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 27 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2022


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         44   3:26 PM  73    1971  44      0       44        
  MINIMUM         22   7:47 AM   1    1989  27     -5       33        
  AVERAGE         33                        36     -3       39     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.04 1964   0.10  -0.10      T       
  MONTH TO DATE    4.70                      2.93   1.77     0.19     
  SINCE DEC 1      4.70                      2.93   1.77     0.19     
  SINCE JAN 1     40.51                     42.87  -2.36    34.69     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           4.4  1990   0.1   -0.1      0.0      
  MONTH TO DATE    T                         2.3   -2.3      0.0      
  SINCE DEC 1      T                         2.3   -2.3      0.0      
  SINCE JUL 1      T                         2.6   -2.6       T       
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       32                        30      2       26        
  MONTH TO DATE  780                       726     54      560        
  SINCE DEC 1    780                       726     54      560        
  SINCE JUL 1   1614                      1626    -12     1286        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1   1376                      1231    145     1480        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    SE (150)       
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION    SE (150)       
  AVERAGE WIND SPEED     2.1                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.4                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    74           4:00 AM                                      
 LOWEST     29           3:00 PM                                      
 AVERAGE    52                                                        

..........................................................


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   44        73      1984                      
 MINIMUM TEMPERATURE (F)   27         8      1966                      


SUNRISE AND SUNSET                                                    
DECEMBER 28 2022......SUNRISE   7:28 AM EST   SUNSET   4:55 PM EST     
DECEMBER 29 2022......SUNRISE   7:28 AM EST   SUNSET   4:56 PM EST     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$